Electric signaling device.



PATBNTBD JULY 31, 1906.

P. KENNEDY. I

ELECTRIC SIGNALZNG DEVICE.

APPLIGATIQH 13213 1Y3, 28, 1908.

3 SHEETS-SHEET 1.

54400144 01 P [rick/r Nady 5 63i. arran e-14 I 19% in c a: e o XPZ/ PATBNTED JULY 31, N06.

P. {{ENNBDY. ELECTRIC SIGNALING DEVICE.

APPLIOATIUN FILED APB- 28, 1906.

UNITED STATES PATENT OFFICE. PATRICK KElElEdYYiOF NEW YURK, N. Y. zu-zc'l'mc SIGNALENG DEViCE.

Patented July 31,1906.

Application filed April 26,1866. serislifini'ltisflifi.

To alt whom it may concern:

Be itlmown that I, PATRICK KENNEDY, a citizen of the United States residin in the borough of Brooklyn, in the count o Rings,

following is a specification.

This invention relates to of automatic electric signaling non-interfering kind or type,

which the the general class devices of the of which firealarm signal-transmitters are examples.

The principal object of the present invention is to H iiessing in of the si 'care auxiliary e starting of ism, but which is normally rovide the instrument with an ectromagnet which controls the the signal-transmitting niechan shunted. ontof the line-circuit, and therefore inoperative. The main electromagnet, which is made p0 tentially operative by the pressing in of serres'to break sryinsgnet and. allow the current to flow thron when the line is receptive '0 e sent by the instrument.

also rendered normally inbutton si til-transmitting and shunt about the a electromagnet is the in its coils the signal The main active by a shunt, which is broken by the e annatureoi t e provided with retarding ai-transmitting button.

main 'electroma means whic et is renders its movements toward the poles of the eleotromagnet quite slow.

The invention will be hereinafter fully described with reference to the accompan drawfigliFs, and the novel features thereo y defined in the claims.

In the said drawings, embodiment of the invention, somewhat diagrammatic view anism of the instrument when 2 is a similar View showing the parts at the moment the shun the si al-transmitting button which illustrate. on

Figure 1 is a of the meets at rest. Fig; position ofthe t is broken by and Fig. 3 is a sirni ar view showing the mechanism n c'poration transmitting a signal Fig. 4 is a lan of the mechanism as seen m Fig. 1. 1g. 5 1s a view of the mechanism asseen from the left in Fig. 1, some mg in section.

of the parts he- F1g.- 6 is a detached detail view of the signal-transmitting'hutton. In the principal views, A designates a box inclosing the mechanism of the signal-transmitting instrum en t.

Bis'the main elcctromagnet.

C isthe auxiliary electronic. D 18 the break-contact whee et. driven by an ordinary clock mechanism or train E. (Only shown herein diagrammatically, as this is a common feature in the present art.) Driven a notch forming a shoulder a to be engaged by e.v stud or pin 1) on a detent-lever G, so as to hold the drwin mechanism against movement. The disk 77 rotates when free in the direction indicated On the detenfrlever G is the armature c of the auxiliary magnet C, and when this magnet is excited it li ts said lever until the pin 1) is free from the shoulder a, and thus ermits the train to drive the break-contact w ll Ihe brushes d d" of the break-contaet wheel rest normally on a tooth of said wheel, thus eitablishing electric connection between t em.

button does not act directly to transmit a signal, but. is inxthe nature of a circuitbreaker, when when pressed in breaks a shunt about the main magnet, and thus to transmit the si receptive. It W1 to state that the stem 0 rice a'contacbpiece f when the line becomes be sufiicient at this oint of the button car- Fig. 4, which under terminal contacts 9 and g at a break in the shunt circuit. I. is the armature-lever of the main magnet B. is its spring. t is the armature, and J is an tardin device for the armature. V

The 'c-wires enterin the box A are desiignetedby W and W e current enteringb the wire, W under normal conditions en no si al is bein ing-post o the brush of the wheel D, thence by wire to to a contact 7' on the dot'ent-lever G, thence toe sprinFoontact k,"thence by wire toto the terrains g atthe button, thence wire or to the line-wire W. This forms a about about the main magnet" B. If this shunt be broken by the pushmg in of the buttonv H the current ma. new from wire W by wire 111, contacts an. tact g,'thence by wire "to'a spring contact m, thence to aeontact n, thence lag wires and w to the coils of magnet through said coils, and thence by wire ma te the line-wire WI 7 n thiswillencite magnet B and it will at tract its armature l, and if the line is recepby the train is a disk F, which has in its edge by the arrow thereon.-

eel D.

H is the signal-transmitting button. This puts the" instrument in potential-condition normal conditions connects electrically two ordinary re-- sent goes tothe bind- 5 to the terminal wgthereat,and thence by we wire 11; to con- :05

'ifthe current be flowing, no

, thence lever G and movin .the auxiliary magnet C tive the armature will continue to move up to the poles of the magnet. In the meantime is shunted out of the line-circuit butmeans are provided whereby the arn'iature-lever I in its movement toward the poles of the ma met B will at some predetermined point in its travel break the shunt about the magnet C and allow the current to flow throu h its coils and excite it. This feature will now be described; At its free end the armature-lever I carries a screw or adjustable pin 0, which will in the move ment of said lever towardthe poles of the magnet B impinge upon the s ring contacttermi-nal m and move it out 0 contact with the fixed contact-terminal it, thus breaking the shunt about the magnet C. This is the momentary position of the arts seen in Fig. 2. The current now flows om the terminal g to the contact-terminal m, thence by a wire w" to the coils of the magnet C, through said coils, thence by a wire to to wire w, and thence through the coils of magnet B and wire w" to the line-wire V. The auxiliary magnet C will now be excited and will attract its armature 0, thus lifting the detentthe stud or pin 11 out of engagement with t e shoulder a on the disk F and setting the train in motion. This is the position of the parts seen in Fig. 3; but the instant the detent-lever C is lifted ever so little the circuit will be broken between the contact-terminals j and. In an the current must flow throu h brush d to the tooth of wheel D, thence t rough brush d to its binding-post, and thence by a wire w to the wire w. The wheel D now becomes a circuitbreaker, and the current through magnet B will be momentarily broken whenever the brushes pass off from a tooth of said wheel.

he general features being now under stood, the means for breaking the shunt-circuit at the button H and maintaining said break until the signal shall have been transmitted may now be explained, premising, however, that other equivalent devices may as well be employed. The stem 6 of the button H has a spline p, engagin a suitable 15' in the box groove in the )late or partition A, through which it plays, said spline preven tin axial rotation of the stern. At its inner en the stem plays in a sprin -case and guide g, Fig. 5, against a spring 1', w iicli tends to press the button outward. In the stem is mounted a spring latch-detent 8, Figs. 5 and 6, which is kept pressed into its slot normally by the detent-lever G. When the button is pressed in, this latch passes the lever G and files out or up and by takin behind the lever G prevents the sprin r rom ressing the button outward until t e lever is lifted far enough to set the signal-transmitting mecliauism in motion. is detent serves 0 maintain the break in the shunt about the magnet B until the mechanism is set in motlon. outward, itcloses the shunt about the ma net B, and the latter is shunted out from the inecircuit. Its armature and lever move back and the contact-terminals m and it come together and shunt out the auxiliary magnet C. The detent-lever G is now free to be drawn down by its spring 15 or ravity, as preferred, and the in or stud b Falls on the rim or periphery o the disk F, on which it rides until the latter shall have made a complete revolution, when the said pin will 'dro down in front of the shoulder a on the dis and arrest the movement mechanism. When the pin 6 dro 5 low enough to engage the shoulder a, t e contacts 7' and it will be brought to ether and the brushes d and d thus shunts out from the line-circuit.

The ractical operation of the instrument when t e line is clear and receptiveof the signal has been sufficiently described above; but if the conditions are diflerent and a signal is being sent from some other transmitting instrument in the same closed circuit the operation will be as follows: The person wishing to send the signal opens the door of thebox and presses in the button H, which will be retained by the means already described. The shunt about the magnet B will thus be broken but as a signal is being sent by another instrument in the circuit the armature of the magnet B will only be moved to a slight extent by the momentary excitation of said magnet and not to an extent sufficient to permit the screw 0 to impin e upon the contactterminal m and break t e shunt about the auxiliary ma net C. The retardation of the armature 2' Will suffice to allow any signal to be sent from another transmitting instrument in the circuit before the armature can reach the position seen in Fi 2, and thus cause the break in the shunt a out the auxiliar magnet C. Nevertheless the mechanism wil remain in position, whereby when the signal at the other instrument shall have been When the button is freed and moves of the driving sent and the circuit closed the signal willbe automatically sent without the necessity of any further manipulation. The transmitting instruments ma operate in succession 1n case several signa s are to be sent at the same time-that is to say, if, for exam le, the buttons of several instruments she] be pressed substantially simultaneously they will send their signals automatically in a prearranged succession, and this succession may be effected b adjustment of the screws 0 of the several instruments, so that the said screws will break the shunts about the re spective auxiliary magnets at different points in the movement of the armature 1 toward the poles of the magnet.

It will be noted that, as herein shown, the instruments operate on a closed circuit and that there are three shunts-namely, one

mmiiiazy magnst which. shunts it nut an he 12m-- 3u'cmt, a 11mm elem akmg means operate l 1?; breaking the :shun

about the breakcont-zwt dwice, one abaut 1 the main magnet B, am"? ue 'abmlt the i ihary magnet C; al a that the mam; H

make the shunt abcmt the Imxgnet B, that L the magnet 15 breaks the S11E21; leut V out rip. ma Kim-y magnet, a 3.171111% abeut magnat- G, and that the magnet i meaks Liza 1- 1a mam um. wtmzh shunts 2%, naymaly (v imt if tin; 3m: an t, mamaailyfiperaiabie muans am break ng flm shunt a.\, \'at The main shunt about the breakmonmct viousiy an Y quivalent cirmm bleak meana Ina-17%;: em 10 ed in iieu vi the 5 312. shown. a will a so I; note t1 the 11; M3;- net C, when excited acts t0 rei $251553: 1, Rhunts about itself and the nmgmri 1S as: 133 shunt abnuz the Lwmak'contaot s In Figs. 2 and 3 the termimfls'g and g are.

device. .11:-

gaming i'nstmment, havi or bran-muting s. slgnai. smii shown partly hmken am his is daga iuding :1 bsdvacntmzt i iev'm mewi m filustratc the i'ifindltlifl'l the sum-1t mm, m the hue-circuit a enbaut the zsmgnet E memg hmimm in hompf arrests the operation 2f sai bhaae views in: i115 gushing 111w? inaim'i an i: Y amuhary eiectromagnet m k ,siz iever for iwesking tha meak wmaatdevice when 52$ an rmwtion, 9. main mag 2 i} line-aim? 1, An electric. sigx'mling ing mechanism in" transznitting a :mxiiiary eieizbrumagnet whiz mechani m in aperatiun, a aha; .5 2 3mm said auxiiiary maguei. which shunts it nui'n'sal'i cut 0% L112 lizw-niz euit, in main dsfltlmnglgk, ciz'cuit "bfliiklfl f means spar magnet forbremci mg the ihary magnet, a shunt $13011 said. an aim 11a amt which shunts it In: 9111511 01st 01 the i V circuit, n1a11ua11y0pe1'ntaiflelnesmsfmbreak- 1 11;.sti1um-nt, has? sigma ma sets ui the auxiliary magnet than the m w .m magnet makes a pre- L mammfiympamt azmut is b sent, 11;; {ape-1a am i! the shunt abs at 311221;

ing the shunt about the main nzagnefi whml a l n m is in 'mntio'n, ml be sent, and mamas fin hailing t i P" aaiacafiy {this 1g 319mm,;-

51 histrmmwd shunt 01:91.1 anti the Kansas; 151 mechanism 5 3 satin 0ptlng uwdaanism set in epemtio'zz.

2; Em eieutric signaling instmmant, 132w ing mechanism for tremamitsing a signs which mechaniam includes a. byeak'comgct e'vice nmnmfiy in slmni an azzziflim y aim tromagnet whisk sets said mechanism in a era'bicm an simultaneously breaks the shunt abeut tbs break-contact device, a shunt W its 

